| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-dip Sn-Zn-plated steel sheet which has excellent corrosion resistance and is particularly suitable as an automobile fuel tank material which can cope with a common rail type diesel engine.SOLUTION: In the hot-dip Sn-Zn-plated steel sheet, a steel sheet surface is overlaid with a hot-dip Sn-Zn plating layer comprising 91.2-99.0 mass% Sn, 1-8.8 mass% Zn, and the remainder being inevitable impurities. An Ni plating layer exists by 10-100 mg/mon an upper layer of the hot-dip Sn-Zn plating layer, preferably the Ni plating layer exists by 25-60 mg/mon the upper layer of the hot-dip Sn-Zn plating layer. |
